One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,5)(3,6,7,8)(9,10)(11,14)(12,13)(15,16)(17,18)(19,24)(20,22)(21,25)(23,26)(27,29)(28,31)(30,32)(2,5)(6,8)(9,10)(11,14)(12,13)(15,16)(17,19,23,20)(18,22,26,24)(21,25,30,32)(27,29,28,31)(1,3,4,7)(2,6,5,8)(10,13)(14,16)(17,20,23,19)(18,22,26,24)(21,28,30,27)(25,31,32,29)(10,13)(14,16)(17,21)(18,25)(19,27)(20,28)(22,31)(23,30)(24,29)(26,32) involution — undirected(2,5)(6,8)(9,11,12,15)(10,14,13,16)(17,22,23,24)(18,19,26,20)(21,29,30,31)(25,28,32,27)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.